Structural Analysis of Phase Change Materials (PCMs)/Expanded Graphite (EG) Composites and Their Thermal Behavior under Hot and Humid Conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F23%3A00010437" target="_blank" >RIV/46747885:24410/23:00010437 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/pdf/10.1002/cplu.202300081" target="_blank" >https://onlinelibrary.wiley.com/doi/pdf/10.1002/cplu.202300081</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cplu.202300081" target="_blank" >10.1002/cplu.202300081</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structural Analysis of Phase Change Materials (PCMs)/Expanded Graphite (EG) Composites and Their Thermal Behavior under Hot and Humid Conditions

Popis výsledku v původním jazyce

Expanded graphite (EG) has been used to store phase change materials (PCM) to enhance thermal conductivity and avoid leakage. However, systematic investigation on physical structure of various embedded PCMs in EG is not reported. Besides, effect of environment on thermal behavior of PCM/EG composites has not been investigated yet. In this work, three common PCMs were used to be embedded in EG and three PCM/EG composites were obtained, including myristic acid (MA), polyethylene glycol (PEG) and paraffin wax (PW). As a result, capillary force between EG and PCMs supported encapsulation of PCMs in EG. PCM/EG composites had narrower phase change range while supercooling degree values were different when various PCMs were used. Besides, the hot and humid environment had a side effect on thermal energy storage of PCMs and PCM/EG composites. The inherent hydrophilicity of PCMs was essential for resistance against side effect of moisture on thermal energy storage.

Název v anglickém jazyce

Structural Analysis of Phase Change Materials (PCMs)/Expanded Graphite (EG) Composites and Their Thermal Behavior under Hot and Humid Conditions

Popis výsledku anglicky

Expanded graphite (EG) has been used to store phase change materials (PCM) to enhance thermal conductivity and avoid leakage. However, systematic investigation on physical structure of various embedded PCMs in EG is not reported. Besides, effect of environment on thermal behavior of PCM/EG composites has not been investigated yet. In this work, three common PCMs were used to be embedded in EG and three PCM/EG composites were obtained, including myristic acid (MA), polyethylene glycol (PEG) and paraffin wax (PW). As a result, capillary force between EG and PCMs supported encapsulation of PCMs in EG. PCM/EG composites had narrower phase change range while supercooling degree values were different when various PCMs were used. Besides, the hot and humid environment had a side effect on thermal energy storage of PCMs and PCM/EG composites. The inherent hydrophilicity of PCMs was essential for resistance against side effect of moisture on thermal energy storage.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10400 - Chemical sciences

Projekt

<a href="/cs/project/GM21-32510M" target="_blank" >GM21-32510M: Pokročilé struktury pro tepelnou izolaci v extrémních podmínkách</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ChemPlusChem

ISSN

2192-6506

e-ISSN

—

Svazek periodika

88

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

7

Strana od-do

—

Kód UT WoS článku

000969646800001

EID výsledku v databázi Scopus

2-s2.0-85152244429